A look at the rifles professional guides use for brown bears generally starts at the .338 and goes up from there. The .375 Holland and Holland has been relatively standard for many years and the .416s and .458s make up a smaller but significant percentage. One legendary Kodiak guide even used a .500 Nitro Express. But guiding for bears isn’t the same thing as hunting them. Few people shoot a .458 or .375 really well and good shooting tends to eliminate all the drama that a big rifle needs to clean up. While plenty of residents use a .375 for hunting brown bears, a lot more use a .300 or .338 magnum and do just fine. In many cases, it’s the same .300 that they use for everything else so they have a lot of familiarity with it which tilts the balance in their favor.
They have a comments sections you can take it up with them on
Well having hunted bears for 50 plus years.
I don’t have to take it up with.